“Alackaday” (also “alack-a-day”) is an intensified form of the interjection “alack,” itself derived from “alack the day!” It expresses deep sorrow, regret, or lamentation, and was standard in Early Modern English drama and
lyric poetry.
Shakespeare uses it in “The Taming of the Shrew” (“Alackaday! I will not
touch it”), and it appears frequently in elegies and soliloquies to signal emotional rupture. The term’s melodramatic tone suits tragic or exaggerated modes, and its triple-syllable structure fits naturally into trochaic or iambic lines with a caesura. For modern poets, it offers a period-appropriate way to channel antique pathos without modern psychological
realism. Related exclamations include “
woe is me,” “alas,” and “fie,” all part of the emotional lexicon of
Renaissance verse.